Chapter 14, Problem 27E

Consider the reaction.

   $\text{2HBr}\left(\text{g}\right)\to {\text{H}}_{\text{2}}\left(\text{g}\right)+{\text{Br}}_{\text{2}}\left(\text{g}\right)$

1. Express the rate of the reaction in terms of the change in concentration of each of the reactants and products.
2. In the first 25.0 s of this reaction, the concentration of HBr drops from 0.600 M to 0.512 M. Calculate the average rate of the reaction during this time interval.
3. If the volume of the reaction vessel in part b is 1.50L, what amount of Br₂ (in moles) forms during the first 15.0 s of the reaction?